/* Modern AI Chat Interface Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  height: 100vh;
  overflow: hidden;
}

.chat-wrapper {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-radius: 20px;
  margin: 10px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

/* Header Styles */
.ai-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.ai-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

.header-content {
  display: flex;
  align-items: center;
  gap: 15px;
  z-index: 1;
  position: relative;
}

.ai-avatar {
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.3);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.header-text h1 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 2px;
}

.status {
  font-size: 14px;
  opacity: 0.9;
  font-weight: 300;
}

.header-actions {
  display: flex;
  gap: 10px;
  z-index: 1;
  position: relative;
}

.minimize-btn, .close-btn {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: white;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.minimize-btn:hover, .close-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
}

/* Chat Container */
.chat-container {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  scroll-behavior: smooth;
}

.chat-container::-webkit-scrollbar {
  width: 6px;
}

.chat-container::-webkit-scrollbar-track {
  background: transparent;
}

.chat-container::-webkit-scrollbar-thumb {
  background: rgba(102, 126, 234, 0.3);
  border-radius: 3px;
}

/* Welcome Message */
.welcome-message {
  display: flex;
  justify-content: center;
  margin: 20px 0;
}

.ai-typing-indicator {
  display: flex;
  gap: 8px;
  padding: 20px;
  background: white;
  border-radius: 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.typing-dot {
  width: 8px;
  height: 8px;
  background: #667eea;
  border-radius: 50%;
  animation: typing 1.4s infinite ease-in-out;
}

.typing-dot:nth-child(1) { animation-delay: -0.32s; }
.typing-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes typing {
  0%, 80%, 100% { transform: scale(0.8); opacity: 0.5; }
  40% { transform: scale(1); opacity: 1; }
}

/* Chat Messages */
.chat-message {
  margin: 15px 0;
  max-width: 80%;
  animation: messageSlide 0.3s ease-out;
  position: relative;
}

@keyframes messageSlide {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.bot-message {
  align-self: flex-start;
  margin-right: auto;
}

.bot-message .message-content {
  background: white;
  padding: 16px 20px;
  border-radius: 20px 20px 20px 5px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(102, 126, 234, 0.1);
  position: relative;
}

.bot-message .message-content::before {
  content: '';
  position: absolute;
  left: -8px;
  top: 20px;
  width: 0;
  height: 0;
  border: 8px solid transparent;
  border-right-color: white;
}

.user-message {
  align-self: flex-end;
  margin-left: auto;
}

.user-message .message-content {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 16px 20px;
  border-radius: 20px 20px 5px 20px;
  box-shadow: 0 4px 20px rgba(102, 126, 234, 0.3);
  position: relative;
}

.user-message .message-content::after {
  content: '';
  position: absolute;
  right: -8px;
  top: 20px;
  width: 0;
  height: 0;
  border: 8px solid transparent;
  border-left-color: #667eea;
}

/* Chat Options */
.chat-options {
  padding: 20px;
  background: white;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.chat-options button {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  padding: 12px 20px;
  border-radius: 25px;
  cursor: pointer;
  font-weight: 500;
  font-size: 14px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
  position: relative;
  overflow: hidden;
}

.chat-options button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.chat-options button:hover::before {
  left: 100%;
}

.chat-options button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

/* Chat Input Area */
.chat-input-area {
  padding: 20px;
  background: white;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.input-wrapper {
  display: flex;
  gap: 12px;
  align-items: center;
}

#user-input {
  flex: 1;
  padding: 16px 20px;
  border: 2px solid rgba(102, 126, 234, 0.2);
  border-radius: 25px;
  font-size: 16px;
  outline: none;
  transition: all 0.3s ease;
  background: #f8fafc;
}

#user-input:focus {
  border-color: #667eea;
  background: white;
  box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.send-btn {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.send-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

/* Back Button */
.back-btn {
  margin: 20px;
  padding: 16px 24px;
  background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
  color: white;
  border: none;
  border-radius: 25px;
  cursor: pointer;
  font-weight: 500;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.back-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 107, 107, 0.4);
}

/* Typing Animation */
.typing-animation {
  display: inline-block;
  overflow: hidden;
  border-right: 2px solid #667eea;
  white-space: nowrap;
  animation: typing 3.5s steps(40, end), blink-caret 0.75s step-end infinite;
}

@keyframes blink-caret {
  from, to { border-color: transparent; }
  50% { border-color: #667eea; }
}

/* Responsive Design */
@media (max-width: 768px) {
  .chat-wrapper {
    margin: 5px;
    border-radius: 15px;
  }
  
  .ai-header {
    padding: 15px;
  }
  
  .header-text h1 {
    font-size: 18px;
  }
  
  .chat-container {
    padding: 15px;
  }
  
  .chat-options {
    padding: 15px;
  }
  
  .chat-input-area {
    padding: 15px;
  }
  
  .back-btn {
    margin: 15px;
    padding: 14px 20px;
  }
}

/* Loading States */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

/* Hover Effects */
.chat-message:hover {
  transform: translateY(-1px);
  transition: transform 0.2s ease;
}

/* Focus States */
button:focus, input:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.3);
}